2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.86 1999-02-02 13:57:38 adam
8 * Uses preprocessor define WIN32 instead of WINDOWS to build code
11 * Revision 1.85 1998/11/17 09:52:59 adam
12 * Fixed minor bug (introduced by previous commit).
14 * Revision 1.84 1998/11/16 16:02:32 adam
15 * Added loggin utilies, log_rpn_query and log_scan_term. These used
16 * to be part of Zebra.
18 * Revision 1.83 1998/11/03 10:09:36 adam
19 * Fixed bug regarding YC.
21 * Revision 1.82 1998/10/20 14:00:30 quinn
24 * Revision 1.81 1998/10/13 16:12:24 adam
25 * Added support for Surrogate Diagnostics for Scan Term entries.
27 * Revision 1.80 1998/09/02 12:41:53 adam
28 * Added decode stream in bend search structures.
30 * Revision 1.79 1998/08/19 16:10:08 adam
31 * Changed som member names of DeleteResultSetRequest/Response.
33 * Revision 1.78 1998/08/03 10:23:55 adam
34 * Fixed bug regarding Options for Sort.
36 * Revision 1.77 1998/07/20 12:38:42 adam
37 * Implemented delete result set service to server API.
39 * Revision 1.76 1998/05/27 16:57:07 adam
40 * Support for surrogate diagnostic records added for bend_fetch.
42 * Revision 1.75 1998/05/18 10:13:07 adam
43 * Fixed call to es_request handler - extra argument was passed.
45 * Revision 1.74 1998/03/31 15:13:20 adam
46 * Development towards compiled ASN.1.
48 * Revision 1.73 1998/03/31 11:07:45 adam
49 * Furhter work on UNIverse resource report.
50 * Added Extended Services handling in frontend server.
52 * Revision 1.72 1998/02/11 11:53:35 adam
53 * Changed code so that it compiles as C++.
55 * Revision 1.71 1998/02/10 11:03:57 adam
56 * Added support for extended handlers in backend server interface.
58 * Revision 1.70 1998/01/29 13:15:35 adam
59 * Implemented sort for the backend interface.
61 * Revision 1.69 1997/09/30 11:48:12 adam
62 * Fixed bug introduced by previous commit.
64 * Revision 1.68 1997/09/29 13:18:59 adam
65 * Added function, oid_ent_to_oid, to replace the function
66 * oid_getoidbyent, which is not thread safe.
68 * Revision 1.67 1997/09/17 12:10:40 adam
71 * Revision 1.66 1997/09/05 15:26:44 adam
72 * Added ODR encode in search and scen bend request structures.
73 * Fixed a few enums that caused trouble with C++.
75 * Revision 1.65 1997/09/01 08:53:01 adam
76 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
77 * moved a separate directory. MSV5.0 project server.dsp created.
78 * As an option, the server can now operate as an NT service.
80 * Revision 1.64 1997/04/30 08:52:11 quinn
83 * Revision 1.63 1996/10/11 11:57:26 quinn
86 * Revision 1.62 1996/07/06 19:58:35 quinn
87 * System headerfiles gathered in yconfig
89 * Revision 1.61 1996/06/10 08:56:16 quinn
92 * Revision 1.60 1996/05/30 11:03:10 quinn
93 * Fixed NextresultSetPosition bug fixed.
95 * Revision 1.59 1996/05/14 09:26:46 quinn
96 * Added attribute set to scan backend
98 * Revision 1.58 1996/02/20 12:53:04 quinn
101 * Revision 1.57 1996/01/02 08:57:47 quinn
102 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
104 * Revision 1.56 1995/12/14 11:09:57 quinn
107 * Revision 1.55 1995/11/08 17:41:37 quinn
110 * Revision 1.54 1995/11/08 15:11:29 quinn
111 * Log of close transmit.
113 * Revision 1.53 1995/11/01 13:54:58 quinn
116 * Revision 1.52 1995/11/01 12:19:13 quinn
117 * Second attempt to fix same bug.
119 * Revision 1.50 1995/10/25 16:58:32 quinn
122 * Revision 1.49 1995/10/16 13:51:53 quinn
123 * Changes to provide Especs to the backend.
125 * Revision 1.48 1995/10/06 08:51:20 quinn
126 * Added Write-buffer.
128 * Revision 1.47 1995/08/29 14:24:16 quinn
129 * Added second half of close-handshake
131 * Revision 1.46 1995/08/29 11:17:58 quinn
132 * Added code to receive close
134 * Revision 1.45 1995/08/21 09:11:00 quinn
135 * Smallish fixes to suppport new formats.
137 * Revision 1.44 1995/08/17 12:45:25 quinn
138 * Fixed minor problems with GRS-1. Added support in c&s.
140 * Revision 1.43 1995/08/15 12:00:31 quinn
143 * Revision 1.42 1995/08/15 11:16:50 quinn
145 * Revision 1.41 1995/08/02 10:23:06 quinn
148 * Revision 1.40 1995/07/31 14:34:26 quinn
149 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
151 * Revision 1.39 1995/06/27 13:21:00 quinn
154 * Revision 1.38 1995/06/19 12:39:11 quinn
155 * Fixed bug in timeout code. Added BER dumper.
157 * Revision 1.37 1995/06/16 13:16:14 quinn
158 * Fixed Defaultdiagformat.
160 * Revision 1.36 1995/06/16 10:31:36 quinn
161 * Added session timeout.
163 * Revision 1.35 1995/06/15 07:45:14 quinn
166 * Revision 1.34 1995/06/14 15:26:46 quinn
167 * *** empty log message ***
169 * Revision 1.33 1995/06/06 14:57:05 quinn
170 * Better diagnostics.
172 * Revision 1.32 1995/06/06 08:41:44 quinn
173 * Better diagnostics.
175 * Revision 1.31 1995/06/06 08:15:37 quinn
178 * Revision 1.30 1995/06/05 10:53:32 quinn
179 * Added a better SCAN.
181 * Revision 1.29 1995/06/01 11:25:03 quinn
184 * Revision 1.28 1995/06/01 11:21:01 quinn
185 * Attempting to fix a bug in pack-records. replaced break with continue
186 * for large records, according to standard.
188 * Revision 1.27 1995/05/29 08:12:06 quinn
191 * Revision 1.26 1995/05/18 13:02:12 quinn
194 * Revision 1.25 1995/05/17 08:42:26 quinn
195 * Transfer auth info to backend. Allow backend to reject init gracefully.
197 * Revision 1.24 1995/05/16 08:51:04 quinn
198 * License, documentation, and memory fixes
200 * Revision 1.23 1995/05/15 13:25:10 quinn
203 * Revision 1.22 1995/05/15 11:56:39 quinn
204 * Asynchronous facilities. Restructuring of seshigh code.
206 * Revision 1.21 1995/05/02 08:53:19 quinn
207 * Trying in vain to fix comm with ISODE
209 * Revision 1.20 1995/04/20 15:13:00 quinn
212 * Revision 1.19 1995/04/18 08:15:34 quinn
213 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
214 * neater. We'll make the same change for decoding one day.
216 * Revision 1.18 1995/04/17 11:28:25 quinn
219 * Revision 1.17 1995/04/10 10:23:36 quinn
220 * Some work to add scan and other things.
222 * Revision 1.16 1995/03/31 09:18:55 quinn
225 * Revision 1.15 1995/03/30 14:03:23 quinn
226 * Added RFC1006 as separate library
228 * Revision 1.14 1995/03/30 12:18:17 quinn
231 * Revision 1.13 1995/03/30 09:09:24 quinn
232 * Added state-handle and some support for asynchronous activities.
234 * Revision 1.12 1995/03/29 15:40:16 quinn
235 * Ongoing work. Statserv is now dynamic by default
237 * Revision 1.11 1995/03/28 09:16:21 quinn
238 * Added record packing to the search request
240 * Revision 1.10 1995/03/27 08:34:24 quinn
241 * Added dynamic server functionality.
242 * Released bindings to session.c (is now redundant)
244 * Revision 1.9 1995/03/22 15:01:26 quinn
245 * Adjusting record packing.
247 * Revision 1.8 1995/03/22 10:13:21 quinn
248 * Working on record packer
250 * Revision 1.7 1995/03/21 15:53:31 quinn
253 * Revision 1.6 1995/03/21 12:30:09 quinn
254 * Beginning to add support for record packing.
256 * Revision 1.5 1995/03/17 10:44:13 quinn
257 * Added catch of null-string in makediagrec
259 * Revision 1.4 1995/03/17 10:18:08 quinn
260 * Added memory management.
262 * Revision 1.3 1995/03/16 17:42:39 quinn
265 * Revision 1.2 1995/03/16 13:29:01 quinn
266 * Partitioned server.
268 * Revision 1.1 1995/03/15 16:02:10 quinn
269 * Modded session.c to seshigh.c
274 * Frontend server logic.
276 * This code receives incoming APDUs, and handles client requests by means
277 * of the backend API.
279 * Some of the code is getting quite involved, compared to simpler servers -
280 * primarily because it is asynchronous both in the communication with
281 * the user and the backend. We think the complexity will pay off in
282 * the form of greater flexibility when more asynchronous facilities
285 * Memory management has become somewhat involved. In the simple case, where
286 * only one PDU is pending at a time, it will simply reuse the same memory,
287 * once it has found its working size. When we enable multiple concurrent
288 * operations, perhaps even with multiple parallel calls to the backend, it
289 * will maintain a pool of buffers for encoding and decoding, trying to
290 * minimize memory allocation/deallocation during normal operation.
292 * TODOs include (and will be done in order of public interest):
294 * Support for EXPLAIN - provide simple meta-database system.
295 * Support for access control.
296 * Support for resource control.
297 * Support for extended services - primarily Item Order.
298 * Rest of Z39.50-1994
313 #include <comstack.h>
320 #include <statserv.h>
324 static int process_request(association *assoc, request *req);
325 void backend_response(IOCHAN i, int event);
326 static int process_response(association *assoc, request *req, Z_APDU *res);
327 static Z_APDU *process_initRequest(association *assoc, request *reqb);
328 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
330 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
331 bend_search_rr *bsrr, int *fd);
332 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
334 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
335 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
336 static void process_close(association *assoc, request *reqb);
337 void save_referenceId (request *reqb, Z_ReferenceId *refid);
338 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
341 static FILE *apduf = 0; /* for use in static mode */
342 static statserv_options_block *control_block = 0;
344 /* Chas: Added in from DALI */
345 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
346 /* Chas: End of addition from DALI */
349 * Create and initialize a new association-handle.
350 * channel : iochannel for the current line.
351 * link : communications channel.
352 * Returns: 0 or a new association handle.
354 association *create_association(IOCHAN channel, COMSTACK link)
359 control_block = statserv_getcontrol();
360 if (!(anew = (association *)xmalloc(sizeof(*anew))))
362 anew->client_chan = channel;
363 anew->client_link = link;
364 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
365 !(anew->encode = odr_createmem(ODR_ENCODE)))
367 if (*control_block->apdufile)
372 strcpy(filename, control_block->apdufile);
373 if (!(anew->print = odr_createmem(ODR_PRINT)))
375 if (*control_block->apdufile != '-')
377 strcpy(filename, control_block->apdufile);
378 if (!control_block->dynamic)
382 if (!(apduf = fopen(filename, "w")))
384 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
387 setvbuf(apduf, 0, _IONBF, 0);
393 sprintf(filename + strlen(filename), ".%d", getpid());
394 if (!(f = fopen(filename, "w")))
396 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
399 setvbuf(f, 0, _IONBF, 0);
401 odr_setprint(anew->print, f);
406 anew->input_buffer = 0;
407 anew->input_buffer_len = 0;
409 anew->state = ASSOC_NEW;
410 request_initq(&anew->incoming);
411 request_initq(&anew->outgoing);
412 anew->proto = cs_getproto(link);
417 * Free association and release resources.
419 void destroy_association(association *h)
421 odr_destroy(h->decode);
422 odr_destroy(h->encode);
424 odr_destroy(h->print);
426 xfree(h->input_buffer);
428 bend_close(h->backend);
429 while (request_deq(&h->incoming));
430 while (request_deq(&h->outgoing));
431 request_delq(&h->incoming);
432 request_delq(&h->outgoing);
436 static void do_close_req(association *a, int reason, char *message,
440 Z_Close *cls = zget_Close(a->encode);
442 /* Purge request queue */
443 while (request_deq(&a->incoming));
444 while (request_deq(&a->outgoing));
447 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
448 reason, message ? message : "none");
449 apdu.which = Z_APDU_close;
451 *cls->closeReason = reason;
452 cls->diagnosticInformation = message;
453 process_response(a, req, &apdu);
454 iochan_settimeout(a->client_chan, 60);
458 logf(LOG_DEBUG, "v2 client. No Close PDU");
459 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
461 a->state = ASSOC_DEAD;
464 static void do_close(association *a, int reason, char *message)
466 do_close_req (a, reason, message, request_get(&a->outgoing));
470 * This is where PDUs from the client are read and the further
471 * processing is initiated. Flow of control moves down through the
472 * various process_* functions below, until the encoded result comes back up
473 * to the output handler in here.
475 * h : the I/O channel that has an outstanding event.
476 * event : the current outstanding event.
478 void ir_session(IOCHAN h, int event)
481 association *assoc = (association *)iochan_getdata(h);
482 COMSTACK conn = assoc->client_link;
485 assert(h && conn && assoc);
486 if (event == EVENT_TIMEOUT)
488 if (assoc->state != ASSOC_UP)
490 logf(LOG_LOG, "Final timeout - closing connection.");
492 destroy_association(assoc);
497 logf(LOG_LOG, "Session idle too long. Sending close.");
498 do_close(assoc, Z_Close_lackOfActivity, 0);
502 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
504 if (event & EVENT_INPUT)
506 logf(LOG_DEBUG, "ir_session (input)");
507 assert(assoc && conn);
508 /* We aren't speaking to this fellow */
509 if (assoc->state == ASSOC_DEAD)
511 logf(LOG_LOG, "Closed connection after reject");
513 destroy_association(assoc);
517 if ((res = cs_get(conn, &assoc->input_buffer,
518 &assoc->input_buffer_len)) <= 0)
520 logf(LOG_LOG, "Connection closed by client");
522 destroy_association(assoc);
526 else if (res == 1) /* incomplete read - wait for more */
528 if (cs_more(conn)) /* more stuff - call us again later, please */
529 iochan_setevent(h, EVENT_INPUT);
531 /* we got a complete PDU. Let's decode it */
532 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
533 req = request_get(&assoc->incoming); /* get a new request structure */
534 odr_reset(assoc->decode);
535 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
536 if (!z_APDU(assoc->decode, &req->request, 0))
538 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
539 odr_errmsg(odr_geterror(assoc->decode)),
540 odr_offset(assoc->decode));
541 logf(LOG_LOG, "PDU dump:");
542 odr_dumpBER(log_file(), assoc->input_buffer, res);
543 do_close(assoc, Z_Close_protocolError, "Malformed package");
546 req->request_mem = odr_extract_mem(assoc->decode);
547 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
549 logf(LOG_WARN, "ODR print error: %s",
550 odr_errmsg(odr_geterror(assoc->print)));
551 odr_reset(assoc->print);
553 request_enq(&assoc->incoming, req);
556 /* can we do something yet? */
557 req = request_head(&assoc->incoming);
558 if (req->state == REQUEST_IDLE)
560 request_deq(&assoc->incoming);
561 if (process_request(assoc, req) < 0)
562 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
566 if (event & EVENT_OUTPUT)
568 request *req = request_head(&assoc->outgoing);
570 logf(LOG_DEBUG, "ir_session (output)");
571 req->state = REQUEST_PENDING;
572 switch (res = cs_put(conn, req->response, req->len_response))
575 logf(LOG_LOG, "Connection closed by client");
577 destroy_association(assoc);
580 case 0: /* all sent - release the request structure */
581 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
582 nmem_destroy(req->request_mem);
583 request_deq(&assoc->outgoing);
584 request_release(req);
585 if (!request_head(&assoc->outgoing))
586 iochan_clearflag(h, EVENT_OUTPUT);
588 /* value of 1 -- partial send -- is simply ignored */
591 if (event & EVENT_EXCEPT)
593 logf(LOG_DEBUG, "ir_session (exception)");
595 destroy_association(assoc);
601 * Initiate request processing.
603 static int process_request(association *assoc, request *req)
609 assert(req && req->state == REQUEST_IDLE);
610 switch (req->request->which)
612 case Z_APDU_initRequest:
613 res = process_initRequest(assoc, req); break;
614 case Z_APDU_searchRequest:
615 res = process_searchRequest(assoc, req, &fd); break;
616 case Z_APDU_presentRequest:
617 res = process_presentRequest(assoc, req, &fd); break;
618 case Z_APDU_scanRequest:
619 res = process_scanRequest(assoc, req, &fd); break;
620 case Z_APDU_extendedServicesRequest:
621 if (assoc->bend_esrequest)
622 res = process_ESRequest(assoc, req, &fd);
625 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
629 case Z_APDU_sortRequest:
630 if (assoc->bend_sort)
631 res = process_sortRequest(assoc, req, &fd);
634 logf(LOG_WARN, "Cannot handle SORT APDU");
639 process_close(assoc, req); return 0;
640 case Z_APDU_deleteResultSetRequest:
641 if (assoc->bend_delete)
642 res = process_deleteRequest(assoc, req, &fd);
645 logf (LOG_WARN, "Cannot handle Delete APDU");
650 logf(LOG_WARN, "Bad APDU received");
655 logf(LOG_DEBUG, " result immediately available");
656 retval = process_response(assoc, req, res);
660 logf(LOG_DEBUG, " result unavailble");
663 else /* no result yet - one will be provided later */
667 /* Set up an I/O handler for the fd supplied by the backend */
669 logf(LOG_DEBUG, " establishing handler for result");
670 req->state = REQUEST_PENDING;
671 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
673 iochan_setdata(chan, assoc);
680 * Handle message from the backend.
682 void backend_response(IOCHAN i, int event)
684 association *assoc = (association *)iochan_getdata(i);
685 request *req = request_head(&assoc->incoming);
689 logf(LOG_DEBUG, "backend_response");
690 assert(assoc && req && req->state != REQUEST_IDLE);
691 /* determine what it is we're waiting for */
692 switch (req->request->which)
694 case Z_APDU_searchRequest:
695 res = response_searchRequest(assoc, req, 0, &fd); break;
697 case Z_APDU_presentRequest:
698 res = response_presentRequest(assoc, req, 0, &fd); break;
699 case Z_APDU_scanRequest:
700 res = response_scanRequest(assoc, req, 0, &fd); break;
703 logf(LOG_WARN, "Serious programmer's lapse or bug");
706 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
708 logf(LOG_LOG, "Fatal error when talking to backend");
709 do_close(assoc, Z_Close_systemProblem, 0);
713 else if (!res) /* no result yet - try again later */
715 logf(LOG_DEBUG, " no result yet");
716 iochan_setfd(i, fd); /* in case fd has changed */
721 * Encode response, and transfer the request structure to the outgoing queue.
723 static int process_response(association *assoc, request *req, Z_APDU *res)
725 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
726 if (!z_APDU(assoc->encode, &res, 0))
728 logf(LOG_WARN, "ODR error when encoding response: %s",
729 odr_errmsg(odr_geterror(assoc->decode)));
730 odr_reset(assoc->encode);
733 req->response = odr_getbuf(assoc->encode, &req->len_response,
734 &req->size_response);
735 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
736 if (assoc->print && !z_APDU(assoc->print, &res, 0))
738 logf(LOG_WARN, "ODR print error: %s",
739 odr_errmsg(odr_geterror(assoc->print)));
740 odr_reset(assoc->print);
742 odr_reset(assoc->encode);
743 req->state = REQUEST_IDLE;
744 request_enq(&assoc->outgoing, req);
745 /* turn the work over to the ir_session handler */
746 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
747 /* Is there more work to be done? give that to the input handler too */
749 if (request_head(&assoc->incoming))
751 logf (LOG_DEBUG, "more work to be done");
752 iochan_setevent(assoc->client_chan, EVENT_WORK);
759 * Handle init request.
760 * At the moment, we don't check the options
761 * anywhere else in the code - we just try not to do anything that would
762 * break a naive client. We'll toss 'em into the association block when
763 * we need them there.
765 static Z_APDU *process_initRequest(association *assoc, request *reqb)
767 Z_InitRequest *req = reqb->request->u.initRequest;
768 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
769 Z_InitResponse *resp = apdu->u.initResponse;
770 bend_initrequest binitreq;
771 bend_initresult *binitres;
774 logf(LOG_LOG, "Got initRequest");
775 if (req->implementationId)
776 logf(LOG_LOG, "Id: %s", req->implementationId);
777 if (req->implementationName)
778 logf(LOG_LOG, "Name: %s", req->implementationName);
779 if (req->implementationVersion)
780 logf(LOG_LOG, "Version: %s", req->implementationVersion);
782 binitreq.stream = assoc->encode;
783 binitreq.configname = "default-config";
784 binitreq.auth = req->idAuthentication;
785 binitreq.bend_sort = NULL;
786 binitreq.bend_search = NULL;
787 binitreq.bend_present = NULL;
788 binitreq.bend_esrequest = NULL;
789 binitreq.bend_delete = NULL;
790 if (!(binitres = bend_init(&binitreq)))
792 logf(LOG_WARN, "Bad response from backend.");
796 assoc->backend = binitres->handle;
797 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
798 logf (LOG_DEBUG, "Sort handler installed");
799 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
800 logf (LOG_DEBUG, "Search handler installed");
801 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
802 logf (LOG_DEBUG, "Present handler installed");
803 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
804 logf (LOG_DEBUG, "ESRequest handler installed");
805 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
806 logf (LOG_DEBUG, "Delete handler installed");
808 resp->referenceId = req->referenceId;
810 /* let's tell the client what we can do */
811 if (ODR_MASK_GET(req->options, Z_Options_search))
813 ODR_MASK_SET(resp->options, Z_Options_search);
814 strcat(options, "srch");
816 if (ODR_MASK_GET(req->options, Z_Options_present))
818 ODR_MASK_SET(resp->options, Z_Options_present);
819 strcat(options, " prst");
821 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
823 ODR_MASK_SET(resp->options, Z_Options_delSet);
824 strcat(options, " del");
826 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
827 binitreq.bend_esrequest)
829 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
830 strcat (options, " extendedServices");
832 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
834 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
835 strcat(options, " namedresults");
837 if (ODR_MASK_GET(req->options, Z_Options_scan))
839 ODR_MASK_SET(resp->options, Z_Options_scan);
840 strcat(options, " scan");
842 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
844 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
845 strcat(options, " concurop");
847 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
849 ODR_MASK_SET(resp->options, Z_Options_sort);
850 strcat(options, " sort");
852 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
854 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
855 assoc->version = 2; /* 1 & 2 are equivalent */
857 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
859 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
862 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
864 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
867 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
868 assoc->maximumRecordSize = *req->maximumRecordSize;
869 if (assoc->maximumRecordSize > control_block->maxrecordsize)
870 assoc->maximumRecordSize = control_block->maxrecordsize;
871 assoc->preferredMessageSize = *req->preferredMessageSize;
872 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
873 assoc->preferredMessageSize = assoc->maximumRecordSize;
874 resp->preferredMessageSize = &assoc->preferredMessageSize;
875 resp->maximumRecordSize = &assoc->maximumRecordSize;
876 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
877 if (binitres->errcode)
879 logf(LOG_LOG, "Connection rejected by backend.");
881 assoc->state = ASSOC_DEAD;
884 assoc->state = ASSOC_UP;
889 * These functions should be merged.
892 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
895 dr->which = Z_DefaultDiagFormat_v2Addinfo;
896 dr->u.v2Addinfo = addinfo ? addinfo : "";
898 dr->which = Z_DiagForm_v2AddInfo;
899 dr->addinfo = addinfo ? addinfo : "";
904 * nonsurrogate diagnostic record.
906 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
909 Z_Records *rec = (Z_Records *)
910 odr_malloc (assoc->encode, sizeof(*rec));
913 odr_malloc (assoc->encode, sizeof(*err));
914 Z_DiagRec *drec = (Z_DiagRec *)
915 odr_malloc (assoc->encode, sizeof(*drec));
916 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
917 odr_malloc (assoc->encode, sizeof(*dr));
919 bib1.proto = assoc->proto;
920 bib1.oclass = CLASS_DIAGSET;
921 bib1.value = VAL_BIB1;
923 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
926 rec->which = Z_Records_NSD;
928 rec->u.nonSurrogateDiagnostic = dr;
931 rec->u.nonSurrogateDiagnostic = drec;
932 drec->which = Z_DiagRec_defaultFormat;
933 drec->u.defaultFormat = dr;
935 rec->u.nonSurrogateDiagnostic = dr;
938 dr->diagnosticSetId = odr_oiddup (assoc->encode,
939 oid_ent_to_oid(&bib1, oid));
941 set_addinfo (dr, addinfo);
946 * surrogate diagnostic.
948 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
949 int error, char *addinfo)
952 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
953 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
955 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
956 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
958 bib1.proto = assoc->proto;
959 bib1.oclass = CLASS_DIAGSET;
960 bib1.value = VAL_BIB1;
962 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
964 rec->databaseName = dbname;
965 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
966 rec->u.surrogateDiagnostic = drec;
967 drec->which = Z_DiagRec_defaultFormat;
968 drec->u.defaultFormat = dr;
969 dr->diagnosticSetId = odr_oiddup (assoc->encode,
970 oid_ent_to_oid(&bib1, oid));
972 set_addinfo (dr, addinfo);
978 * multiple nonsurrogate diagnostics.
980 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
983 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
984 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
986 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
987 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
988 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
990 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
991 bib1.proto = assoc->proto;
992 bib1.oclass = CLASS_DIAGSET;
993 bib1.value = VAL_BIB1;
996 recs->num_diagRecs = 1;
997 recs->diagRecs = recp;
999 drec->which = Z_DiagRec_defaultFormat;
1000 drec->u.defaultFormat = rec;
1002 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1003 oid_ent_to_oid(&bib1, oid));
1004 rec->condition = err;
1007 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1008 rec->u.v2Addinfo = addinfo ? addinfo : "";
1010 rec->which = Z_DiagForm_v2AddInfo;
1011 rec->addinfo = addinfo ? addinfo : "";
1016 static Z_Records *pack_records(association *a, char *setname, int start,
1017 int *num, Z_RecordComposition *comp,
1018 int *next, int *pres, oid_value format)
1021 int recno, total_length = 0, toget = *num, dumped_records = 0;
1022 Z_Records *records =
1023 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1024 Z_NamePlusRecordList *reclist =
1025 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1026 Z_NamePlusRecord **list =
1027 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1030 records->which = Z_Records_DBOSD;
1031 records->u.databaseOrSurDiagnostics = reclist;
1032 reclist->num_records = 0;
1033 reclist->records = list;
1034 *pres = Z_PRES_SUCCESS;
1038 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1039 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1040 a->maximumRecordSize);
1041 for (recno = start; reclist->num_records < toget; recno++)
1043 bend_fetchrequest freq;
1044 bend_fetchresult *fres;
1045 Z_NamePlusRecord *thisrec;
1046 Z_DatabaseRecord *thisext;
1047 int this_length = 0;
1050 * we get the number of bytes allocated on the stream before any
1051 * allocation done by the backend - this should give us a reasonable
1052 * idea of the total size of the data so far.
1054 total_length = odr_total(a->encode) - dumped_records;
1055 freq.setname = setname;
1056 freq.number = recno;
1058 freq.format = format;
1059 freq.stream = a->encode;
1060 freq.surrogate_flag = 0;
1061 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1063 *pres = Z_PRES_FAILURE;
1064 return diagrec(a, 2, "Backend interface problem");
1066 /* backend should be able to signal whether error is system-wide
1067 or only pertaining to current record */
1070 if (!freq.surrogate_flag)
1072 *pres = Z_PRES_FAILURE;
1073 return diagrec(a, fres->errcode, fres->errstring);
1075 reclist->records[reclist->num_records] =
1076 surrogatediagrec(a, fres->basename, fres->errcode,
1078 reclist->num_records++;
1079 *next = fres->last_in_set ? 0 : recno + 1;
1083 this_length = fres->len;
1085 this_length = odr_total(a->encode) - total_length;
1086 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1087 this_length, total_length);
1088 if (this_length + total_length > a->preferredMessageSize)
1090 /* record is small enough, really */
1091 if (this_length <= a->preferredMessageSize)
1093 logf(LOG_DEBUG, " Dropped last normal-sized record");
1094 *pres = Z_PRES_PARTIAL_2;
1097 /* record can only be fetched by itself */
1098 if (this_length < a->maximumRecordSize)
1100 logf(LOG_DEBUG, " Record > prefmsgsz");
1103 logf(LOG_DEBUG, " Dropped it");
1104 reclist->records[reclist->num_records] =
1105 surrogatediagrec(a, fres->basename, 16, 0);
1106 reclist->num_records++;
1107 *next = fres->last_in_set ? 0 : recno + 1;
1108 dumped_records += this_length;
1112 else /* too big entirely */
1114 logf(LOG_DEBUG, "Record > maxrcdsz");
1115 reclist->records[reclist->num_records] =
1116 surrogatediagrec(a, fres->basename, 17, 0);
1117 reclist->num_records++;
1118 *next = fres->last_in_set ? 0 : recno + 1;
1119 dumped_records += this_length;
1124 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1126 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1127 strlen(fres->basename) + 1)))
1129 strcpy(thisrec->databaseName, fres->basename);
1130 thisrec->which = Z_NamePlusRecord_databaseRecord;
1131 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1132 sizeof(Z_DatabaseRecord))))
1134 recform.proto = a->proto;
1135 recform.oclass = CLASS_RECSYN;
1136 recform.value = fres->format;
1137 thisext->direct_reference = odr_oiddup(a->encode,
1138 oid_ent_to_oid(&recform, oid));
1139 thisext->indirect_reference = 0;
1140 thisext->descriptor = 0;
1141 if (fres->len < 0) /* Structured data */
1143 switch (fres->format)
1145 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1146 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1147 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1149 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1150 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1153 logf(LOG_FATAL, "Unknown structured format from backend.");
1158 * We cheat on the pointers here. Obviously, the record field
1159 * of the backend-fetch structure should have been a union for
1160 * correctness, but we're stuck with this for backwards
1163 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1165 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1168 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1170 memcpy(sutrs, fres->record, fres->len);
1171 sutrs[fres->len] = '\0';
1173 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1175 thisext->which = Z_External_sutrs;
1176 thisext->u.sutrs = sutrs;
1177 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1178 sutrs->len = sutrs->size = fres->len;
1179 memcpy(sutrs->buf, fres->record, fres->len);
1182 else /* octet-aligned record. */
1184 thisext->which = Z_External_octet;
1185 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1188 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1191 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1192 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1195 reclist->records[reclist->num_records] = thisrec;
1196 reclist->num_records++;
1197 *next = fres->last_in_set ? 0 : recno + 1;
1199 *num = reclist->num_records;
1203 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1206 Z_SearchRequest *req = reqb->request->u.searchRequest;
1207 bend_search_rr *bsrr =
1208 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1210 logf(LOG_LOG, "Got SearchRequest.");
1211 save_referenceId (reqb, req->referenceId);
1212 /* store ref id in request */
1214 bsrr->request = reqb;
1215 bsrr->association = assoc;
1217 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1218 if (req->databaseNames)
1221 for (i = 0; i < req->num_databaseNames; i++)
1222 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1224 switch (req->query->which)
1226 case Z_Query_type_1: case Z_Query_type_101:
1227 log_rpn_query (req->query->u.type_1);
1229 if (assoc->bend_search)
1231 bsrr->setname = req->resultSetName;
1232 bsrr->replace_set = *req->replaceIndicator;
1233 bsrr->num_bases = req->num_databaseNames;
1234 bsrr->basenames = req->databaseNames;
1235 bsrr->query = req->query;
1236 bsrr->stream = assoc->encode;
1237 bsrr->decode = assoc->decode;
1240 bsrr->errstring = NULL;
1241 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1242 (assoc->backend, bsrr);
1248 bend_searchrequest bsrq;
1249 bend_searchresult *bsrt;
1251 bsrq.setname = req->resultSetName;
1252 bsrq.replace_set = *req->replaceIndicator;
1253 bsrq.num_bases = req->num_databaseNames;
1254 bsrq.basenames = req->databaseNames;
1255 bsrq.query = req->query;
1256 bsrq.stream = assoc->encode;
1257 bsrq.decode = assoc->decode;
1258 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1260 bsrr->hits = bsrt->hits;
1261 bsrr->errcode = bsrt->errcode;
1262 bsrr->errstring = bsrt->errstring;
1264 return response_searchRequest(assoc, reqb, bsrr, fd);
1267 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1270 * Prepare a searchresponse based on the backend results. We probably want
1271 * to look at making the fetching of records nonblocking as well, but
1272 * so far, we'll keep things simple.
1273 * If bsrt is null, that means we're called in response to a communications
1274 * event, and we'll have to get the response for ourselves.
1276 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1277 bend_search_rr *bsrt, int *fd)
1279 Z_SearchRequest *req = reqb->request->u.searchRequest;
1280 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1281 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1282 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1283 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1284 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1285 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1292 apdu->which = Z_APDU_searchResponse;
1293 apdu->u.searchResponse = resp;
1294 resp->referenceId = req->referenceId;
1295 resp->additionalSearchInfo = 0;
1296 resp->otherInfo = 0;
1298 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1300 logf(LOG_FATAL, "Bad result from backend");
1303 else if (bsrt->errcode)
1305 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1306 resp->resultCount = nulint;
1307 resp->numberOfRecordsReturned = nulint;
1308 resp->nextResultSetPosition = nulint;
1309 resp->searchStatus = nulint;
1310 resp->resultSetStatus = none;
1311 resp->presentStatus = 0;
1315 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1316 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1317 Z_RecordComposition comp, *compp = 0;
1322 resp->resultCount = &bsrt->hits;
1324 comp.which = Z_RecordComp_simple;
1325 /* how many records does the user agent want, then? */
1326 if (bsrt->hits <= *req->smallSetUpperBound)
1328 *toget = bsrt->hits;
1329 if ((comp.u.simple = req->smallSetElementSetNames))
1332 else if (bsrt->hits < *req->largeSetLowerBound)
1334 *toget = *req->mediumSetPresentNumber;
1335 if (*toget > bsrt->hits)
1336 *toget = bsrt->hits;
1337 if ((comp.u.simple = req->mediumSetElementSetNames))
1343 if (*toget && !resp->records)
1348 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1349 prefformat->oclass != CLASS_RECSYN)
1352 form = prefformat->value;
1353 resp->records = pack_records(assoc, req->resultSetName, 1,
1354 toget, compp, next, presst, form);
1357 resp->numberOfRecordsReturned = toget;
1358 resp->nextResultSetPosition = next;
1359 resp->searchStatus = sr;
1360 resp->resultSetStatus = 0;
1361 resp->presentStatus = presst;
1365 if (*resp->resultCount)
1367 resp->numberOfRecordsReturned = nulint;
1368 resp->nextResultSetPosition = next;
1369 resp->searchStatus = sr;
1370 resp->resultSetStatus = 0;
1371 resp->presentStatus = 0;
1378 * Maybe we got a little over-friendly when we designed bend_fetch to
1379 * get only one record at a time. Some backends can optimise multiple-record
1380 * fetches, and at any rate, there is some overhead involved in
1381 * all that selecting and hopping around. Problem is, of course, that the
1382 * frontend can't know ahead of time how many records it'll need to
1383 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1384 * is downright lousy as a bulk data transfer protocol.
1386 * To start with, we'll do the fetching of records from the backend
1387 * in one operation: To save some trips in and out of the event-handler,
1388 * and to simplify the interface to pack_records. At any rate, asynch
1389 * operation is more fun in operations that have an unpredictable execution
1390 * speed - which is normally more true for search than for present.
1392 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1395 Z_PresentRequest *req = reqb->request->u.presentRequest;
1399 Z_PresentResponse *resp;
1404 logf(LOG_LOG, "Got PresentRequest.");
1406 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1407 prefformat->oclass != CLASS_RECSYN)
1410 form = prefformat->value;
1411 if (assoc->bend_present)
1413 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1414 bprr->setname = req->resultSetId;
1415 bprr->start = *req->resultSetStartPoint;
1416 bprr->number = *req->numberOfRecordsRequested;
1417 bprr->format = form;
1418 bprr->comp = req->recordComposition;
1419 bprr->stream = assoc->encode;
1420 bprr->request = reqb;
1421 bprr->association = assoc;
1423 bprr->errstring = NULL;
1424 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1429 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1430 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1431 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1432 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1433 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1436 *num = *req->numberOfRecordsRequested;
1438 apdu->which = Z_APDU_presentResponse;
1439 apdu->u.presentResponse = resp;
1440 resp->referenceId = req->referenceId;
1441 resp->otherInfo = 0;
1444 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1445 num, req->recordComposition, next, presst, form);
1448 resp->numberOfRecordsReturned = num;
1449 resp->presentStatus = presst;
1450 resp->nextResultSetPosition = next;
1456 * Scan was implemented rather in a hurry, and with support for only the basic
1457 * elements of the service in the backend API. Suggestions are welcome.
1459 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1461 Z_ScanRequest *req = reqb->request->u.scanRequest;
1462 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1463 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1464 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1465 int *numberOfEntriesReturned =
1466 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1467 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1468 Z_DiagRecs *diagrecs_p = NULL;
1470 bend_scanrequest srq;
1471 bend_scanresult *srs;
1474 logf(LOG_LOG, "Got ScanRequest");
1475 *scanStatus = Z_Scan_failure;
1476 *numberOfEntriesReturned = 0;
1478 apdu->which = Z_APDU_scanResponse;
1479 apdu->u.scanResponse = res;
1480 res->referenceId = req->referenceId;
1482 res->scanStatus = scanStatus;
1483 res->numberOfEntriesReturned = numberOfEntriesReturned;
1484 res->positionOfTerm = 0;
1485 res->entries = ents;
1486 ents->num_entries = 0;
1487 ents->entries = NULL;
1488 ents->num_nonsurrogateDiagnostics = 0;
1489 ents->nonsurrogateDiagnostics = NULL;
1490 res->attributeSet = 0;
1493 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1494 attent->oclass != CLASS_ATTSET
1495 || attent->value != VAL_BIB1))
1496 diagrecs_p = diagrecs(assoc, 121, 0);
1497 else if (req->stepSize && *req->stepSize > 0)
1498 diagrecs_p = diagrecs(assoc, 205, 0);
1501 if (req->databaseNames)
1504 for (i = 0; i < req->num_databaseNames; i++)
1505 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1507 srq.num_bases = req->num_databaseNames;
1508 srq.basenames = req->databaseNames;
1509 srq.num_entries = *req->numberOfTermsRequested;
1510 srq.term = req->termListAndStartPoint;
1511 srq.stream = assoc->encode;
1512 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1513 attset->oclass != CLASS_RECSYN)
1514 srq.attributeset = VAL_NONE;
1516 srq.attributeset = attset->value;
1517 log_scan_term (req->termListAndStartPoint, attset->value);
1518 srq.term_position = req->preferredPositionInResponse ?
1519 *req->preferredPositionInResponse : 1;
1520 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1521 diagrecs_p = diagrecs(assoc, 2, 0);
1522 else if (srs->errcode)
1523 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1527 Z_Entry **tab = (Z_Entry **)
1528 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1530 if (srs->status == BEND_SCAN_PARTIAL)
1531 *scanStatus = Z_Scan_partial_5;
1533 *scanStatus = Z_Scan_success;
1534 ents->entries = tab;
1535 ents->num_entries = srs->num_entries;
1536 res->numberOfEntriesReturned = &ents->num_entries;
1537 res->positionOfTerm = &srs->term_position;
1538 for (i = 0; i < srs->num_entries; i++)
1544 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1545 if (srs->entries[i].occurrences >= 0)
1547 e->which = Z_Entry_termInfo;
1548 e->u.termInfo = t = (Z_TermInfo *)
1549 odr_malloc(assoc->encode, sizeof(*t));
1550 t->suggestedAttributes = 0;
1552 t->alternativeTerm = 0;
1553 t->byAttributes = 0;
1554 t->otherTermInfo = 0;
1555 t->globalOccurrences = &srs->entries[i].occurrences;
1556 t->term = (Z_Term *)
1557 odr_malloc(assoc->encode, sizeof(*t->term));
1558 t->term->which = Z_Term_general;
1559 t->term->u.general = o =
1560 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1561 o->buf = (unsigned char *)
1562 odr_malloc(assoc->encode, o->len = o->size =
1563 strlen(srs->entries[i].term));
1564 memcpy(o->buf, srs->entries[i].term, o->len);
1565 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1566 srs->entries[i].term, srs->entries[i].occurrences);
1570 Z_DiagRecs *drecs = diagrecs (assoc,
1571 srs->entries[i].errcode,
1572 srs->entries[i].errstring);
1573 assert (drecs->num_diagRecs == 1);
1574 e->which = Z_Entry_surrogateDiagnostic;
1575 assert (drecs->diagRecs[0]);
1576 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1583 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1584 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1589 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1592 Z_SortRequest *req = reqb->request->u.sortRequest;
1593 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1594 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1596 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1598 logf(LOG_LOG, "Got SortRequest.");
1601 bsrr->num_input_setnames = req->num_inputResultSetNames;
1602 bsrr->input_setnames = req->inputResultSetNames;
1604 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1605 bsrr->input_setnames = req->inputResultSetNames->strings;
1607 bsrr->output_setname = req->sortedResultSetName;
1608 bsrr->sort_sequence = req->sortSequence;
1609 bsrr->stream = assoc->encode;
1611 bsrr->sort_status = Z_SortStatus_failure;
1613 bsrr->errstring = 0;
1615 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1617 res->referenceId = req->referenceId;
1618 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1619 *res->sortStatus = bsrr->sort_status;
1620 res->resultSetStatus = 0;
1623 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1625 res->diagnostics = dr->diagRecs;
1626 res->num_diagnostics = dr->num_diagRecs;
1628 res->diagnostics = dr;
1634 res->num_diagnostics = 0;
1636 res->diagnostics = 0;
1640 apdu->which = Z_APDU_sortResponse;
1641 apdu->u.sortResponse = res;
1645 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1648 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1649 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1650 odr_malloc (assoc->encode, sizeof(*res));
1651 bend_delete_rr *bdrr = (bend_delete_rr *)
1652 odr_malloc (assoc->encode, sizeof(*bdrr));
1653 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1655 logf(LOG_LOG, "Got DeleteRequest.");
1657 bdrr->num_setnames = req->num_resultSetList;
1658 bdrr->setnames = req->resultSetList;
1659 bdrr->stream = assoc->encode;
1660 bdrr->function = *req->deleteFunction;
1662 ((int (*)(void *, bend_delete_rr *))
1663 (*assoc->bend_delete))(assoc->backend, bdrr);
1665 res->referenceId = req->referenceId;
1667 res->deleteOperationStatus = (int *)
1668 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1669 *res->deleteOperationStatus = bdrr->delete_status;
1671 res->deleteListStatuses = 0;
1672 res->numberNotDeleted = 0;
1673 res->bulkStatuses = 0;
1674 res->deleteMessage = 0;
1677 apdu->which = Z_APDU_deleteResultSetResponse;
1678 apdu->u.deleteResultSetResponse = res;
1682 static void process_close(association *assoc, request *reqb)
1684 Z_Close *req = reqb->request->u.close;
1685 static char *reasons[] =
1692 "securityViolation",
1699 logf(LOG_LOG, "Got Close, reason %s, message %s",
1700 reasons[*req->closeReason], req->diagnosticInformation ?
1701 req->diagnosticInformation : "NULL");
1702 if (assoc->version < 3) /* to make do_force respond with close */
1704 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1708 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1712 reqb->len_refid = refid->len;
1713 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1714 memcpy (reqb->refid, refid->buf, refid->len);
1718 reqb->len_refid = 0;
1723 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1725 process_response (a, req, res);
1728 bend_request bend_request_mk (bend_association a)
1730 request *nreq = request_get (&a->outgoing);
1731 nreq->request_mem = nmem_create ();
1735 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1740 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1741 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1742 id->len = id->size = req->len_refid;
1743 memcpy (id->buf, req->refid, req->len_refid);
1747 void bend_request_destroy (bend_request *req)
1749 nmem_destroy((*req)->request_mem);
1750 request_release(*req);
1754 int bend_backend_respond (bend_association a, bend_request req)
1756 return process_request (a, req);
1759 void bend_request_setdata(bend_request r, void *p)
1764 void *bend_request_getdata(bend_request r)
1766 return r->clientData;
1769 /* Chas: Added in from DALI */
1770 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1772 bend_esrequest_rr esrequest;
1774 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1775 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1777 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1779 logf(LOG_DEBUG,"inside Process esRequest");
1781 esrequest.esr = reqb->request->u.extendedServicesRequest;
1782 esrequest.stream = assoc->encode;
1783 esrequest.errcode = 0;
1784 esrequest.errstring = NULL;
1785 esrequest.request = reqb;
1786 esrequest.association = assoc;
1788 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1791 /* If the response is being delayed, return NULL */
1792 if (esrequest.request == NULL)
1795 resp->referenceId = req->referenceId;
1797 if ( esrequest.errcode == 0 )
1799 /* Backend service indicates request will be processed */
1800 logf(LOG_DEBUG,"Request will be processed...Good !");
1801 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1805 /* Backend indicates error, request will not be processed */
1806 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1807 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1809 /* Do something with the members of bend_extendedservice */
1811 logf(LOG_DEBUG,"Send the result apdu");
1816 /* Chas: End of addition from DALI */